1 files changed, 78 insertions, 0 deletions
diff --git a/cpukit/score/src/corebarrierwait.c b/cpukit/score/src/corebarrierwait.c
new file mode 100644
index 0000000000..4db276f1ce
--- /dev/null
+++ b/cpukit/score/src/corebarrierwait.c
@@ -0,0 +1,78 @@
+/*
+ *  SuperCore Barrier Handler
+ *
+ *  DESCRIPTION:
+ *
+ *  This package is part of the implementation of the SuperCore Barrier Handler.
+ *
+ *  COPYRIGHT (c) 1989-2006.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/system.h>
+#include <rtems/score/isr.h>
+#include <rtems/score/corebarrier.h>
+#include <rtems/score/states.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/threadq.h>
+
+/*PAGE
+ *
+ *  _CORE_barrier_Wait
+ *
+ *  Input parameters:
+ *    the_barrier - pointer to barrier control block
+ *    id          - id of object to wait on
+ *    wait        - true if wait is allowed, false otherwise
+ *    timeout     - number of ticks to wait (0 means forever)
+ *    api_barrier_mp_support - api dependent MP support actions
+ *
+ *  Output parameters:  NONE
+ *
+ *  INTERRUPT LATENCY:
+ *    available
+ *    wait
+ */
+
+void _CORE_barrier_Wait(
+  CORE_barrier_Control                *the_barrier,
+  Objects_Id                           id,
+  bool                                 wait,
+  Watchdog_Interval                    timeout,
+  CORE_barrier_API_mp_support_callout  api_barrier_mp_support
+)
+{
+  Thread_Control *executing;
+  ISR_Level       level;
+
+  executing = _Thread_Executing;
+  executing->Wait.return_code = CORE_BARRIER_STATUS_SUCCESSFUL;
+  _ISR_Disable( level );
+  the_barrier->number_of_waiting_threads++;
+  if ( _CORE_barrier_Is_automatic( &the_barrier->Attributes ) ) {
+    if ( the_barrier->number_of_waiting_threads ==
+	 the_barrier->Attributes.maximum_count) {
+      executing->Wait.return_code = CORE_BARRIER_STATUS_AUTOMATICALLY_RELEASED;
+      _ISR_Enable( level );
+      _CORE_barrier_Release( the_barrier, id, api_barrier_mp_support );
+      return;
+    }
+  }
+
+  _Thread_queue_Enter_critical_section( &the_barrier->Wait_queue );
+  executing->Wait.queue          = &the_barrier->Wait_queue;
+  executing->Wait.id             = id;
+  _ISR_Enable( level );
+
+  _Thread_queue_Enqueue( &the_barrier->Wait_queue, timeout );
+}